Pengaruh Konsentrasi Katalis Koh Dan Kecepatan Pengadukan Pada Proses Transes…

Coffee grounds are used as raw material for making biodiesel because the oil content in the seeds is quite high, around 15-25%. Coffee grounds oil was obtained by maceration extraction using n-hexane. As much as 286ml of oil was obtained from the results of the separation with the rotary evaporator. In this study, esterification process was carried out to reduce the water content and high free …